Service manual

ROBERTS GORDON
®
NRG CONTROL INSTALLATION, OPERATION AND SERVICE MANUAL
2 of 40
SECTION 1: INTRODUCTION
Your Safety is Important to Us!
This symbol is used throughout
the manual to notify you of
possible fire, electrical or burn
hazards. Please pay special
attention when reading and fol-
lowing the warnings in these
sections.
Installation, service and annual inspection of
controller must be done by an electrician qualified in
the installation and service of control systems for
heating equipment.
Installation, service and annual inspection of heater
must be done by a contractor qualified in the
installation and service of gas or oil fired heating
equipment.
Read this manual carefully before installation,
operation, or service of this equipment.
The equipment must be applied and operated under
the general concepts of resonable use and installed
using best building practices.
This equipment is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given
supervision or instruction concerning use of the
appliance by a person responsible for their safety.
Children should be supervised to ensure that they
do not play with the equipment.
For optimum heater performance and safe heating
conditions, inspect and maintain heater(s) before
every heating season and as necessary. Also, know
and maintain heater clearances to combustibles,
see heater Installation, Operation and Service
Manual for further details. If you require additional
manuals, contact Roberts-Gordon at [phone]
7700 or at www.robertsgordon.co.uk.
1.1 Safety Labels and Their Placement
Product safety signs or labels should be replaced by
product user when they are no longer legible.
Please contact Roberts-Gordon Europe Limited or
your ROBERTS GORDON
®
independent distributor
to obtain replacement signs or labels.
1.2 What is a ROBERTS GORDON
®
NRG
Control?
The ROBERTS GORDON
®
NRG Control is a micro
processor based controller designed for efficient
control of ROBERTS GORDON
®
warm air and
radiant products. Each control is intended for
operation of a single zone of heating but is designed
so that individual controls may be linked to form a
network that will allow information and settings to be
available at one or any of the units dependent upon
site configuration. Controls will operate the following
products:
• Warm air heaters On/Off operation
• Unitary BLACKHEAT
®
radiant systems
• BLACKHEAT
®
multi burner systems on a single
zone*
•CORAYVAC
®
systems on a single zone*
•Heaters with two stage High/Low operation
•Heaters with modulating burners requiring a 0-
10V DC input
*For safe use of multiburner and CORAYVAC
®
systems with up
to four zones operating with a single shared fan, additional use
of ROBERTS GORDON
®
System Control will be required with a
ROBERTS GORDON
®
NRG Control installed for each zone.
1.2.1 Features of the ROBERTS GORDON
®
NRG
Control.
• Coded access to set up and network functions to
prevent unauthorised access.
• Built in temperature sensor.
• Remote temperature sensor option.
• Self learning optimum start.
• Automatic correction for daylight saving time
changes.
• Burner lockout indication and reset for suitable
heater systems.
• Pre programmed holiday functions.
• May be connected on a network to give access
to all controls from a single point.
• Programmed in 5 languages as standard.
• Data logging of hours run and temperatures.
1. 3 G en e r al Requirements
The ROBERTS GORDON
®
NRG Control is only for
use with ROBERTS GORDON
®
heating products.
On site commissioning is required to ensure
temperature sensor is calibrated, and that options
available are selected correctly. Before proceeding
with installation, it will be necessary to check that
the following points have been considered.
1.4 Control Location
Each control is intended to operate a single zone of
heating. The built in sensor may be used for
temperature control. In this case, position control as
in Section 1.6.1 through Section 1.6.3.
When remote temperature sensors are required,
control may be fitted in any suitable location. If
required, two remote sensors may be installed. The
average of the two sensors will be calculated by the
control.
1.5 Network Installation
The ROBERTS GORDON
®
NRG Control may be
installed on a network so that all controls may be
accessed from a single control, selected controls or
all controls dependent upon how they are configured
on site. To use control on a network simply requires
wiring of COMS port on one control to connect to
COMS port on each of the other controls in a
continuous loop.